I have to disagree that they are just computer programs. Yes, they are artificial intelligence routines, but they are not written by a human. They are extrapolated from DNA. They think, they feel, they have desires. Just like you and me. Human thought is, at it's very base, binary. A brain cell (neuron) fires or it doesn't. One neuron firing or not firing is insignificant and irrelevant. Trillions and trillions of them firing and not firing in coherent patterns creates the most powerful force in the universe: consciousness. Yes, the digital clones on USS Calister are computer programs. Guess what? So are you and I. So what makes us so special and them not? Heck, they even wanted to die (before they hit the update vortex). And no one programmed them to want that. And Walton holding a grudge against Daley because of what he did to his virtual son? And threatened to do again? That was so believable it was scary.
These digital clones were sentient, sapient beings with the same right to survive and be treated fairly as anyone else.